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(No Model.)` l 2 Sheets-Sheet 1. J. N. MAHER. PUMPING RIGGLNG POR- OILWELLS.'

Patented Oct. 26, 1897.

(No Modl.) L 2 sheets-sheen 2. J. N. MAHBR.

f PUMPING RIGGING FOR OIL WELLS, No. 592,655. Patented Oct. 26, 1897.

b 2 o ,Vl/to@ Witwe/oom l v. uw

JOHN N. MAHER, OE FRANKLIN, PENNSYLVANIA, AssIGNOE To GEORGE ALLEN, OESAME PLACE.

PUMPlNG-RIGGING FORvQlL-WELLS.

SPECIFICATION forming part of Letters Patent No. 592,655, dated October26, 1897. Application Eea February 24,1897. seria No. 624,799. (Nomodel.)

To all whom it may concern.- v

Be it known that I, J OHN N. MAHER, a citizen of the United States,"residing at Franklin, in the county of Venango and State ofPennsylvania, have invented certain new and useful Improvements inPumping-Riggings for Oil-Wells; and I do hereby declare the following tobel a full, clear, and exactv description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to improvements in pumping-rigs for use inoil-Wells, Artesian wellsJ and the like; and it consists in certainnovel features hereinafter described and claimed.

Reference is had to the accompanying drawings, in which the same partsare indicated by the same letters throughout the several views. e

Figure l represents a plan view of `my improved pumping-rig. Fig. 2represents a section along the line 2 2 of Fig. 1. Fig. 3 represents aplan View of a modified form of pumping-rig; and Fig. 4 represents asection along the line 4 4 of Fig.` 3, the connectingrod being omitted.

Referring particularly to Figs. I and 2, A represents the bed-plate onwhich the apparatus is mounted, which is provided with the pedestalB,provided with iianges b,seoured by means of bolts C to'the bed-plateA. This flanged pedestal B is perforated, as at bo, to loosely inclosethe axle G. The space between the axle G and the inner sides of thepedestal B is filled with Babbitt metal B2, whereby the said axle G isheld in rigid engagement. Surrounding the said axle are two groovedbearing-rings D and E, with interposed balls F. The lower bearing-ring Dis secured to or rests on the bearing-plate, while the upperbearing-ring E is secured to or bears against the hub H' of thecrown-wheel H. This hub H is flanged, as at h, and to the flangedportion the eccentricsv K and K0 are secured. These ecoentrics haveoutwardly-projecting flan ges k lying in a horizontal plane and adaptedto support the rings M, which are perforated, as at m0, and serve aseccentricstraps. To any one of these perforations m0 the connecting-rodsP or P' may be attached, as by means of the pin p. These eccentrics Kand K are held together by the central pin N with its nut n and by theVbolts h', which pass through both eccentrics and engage in the flange hof the hub H. The crown-wheel H is driven by means of the pinion Q onthe shaft q, which shaft is driven by the pulley Q' from any convenientsource of power. It will be noted that the rings M, which serve aseccentric-straps, are made in one piece and are slipped over the top ofthe eccentric, where they are supported upon the horizontal flanges 7c,projecting beyond the face of the eccentric.

In the form of device shown in Figs. 3 and 4 a somewhat modified form ofj bed-plate A. is shown, and the crown-wheel, otherwise constructedsubstantially as shown in Figs. l and 2, is provided with a crank-pinH0, engaging the end of the connecting-rod P', which drives the'rotarydrums S, mounted on the pivot-pin T and led as by a plurality of ropes Uor U to the points where the power is applied. By means of thearrangement shown in Figs. 3 and 4 a reciprocating motion is imparted tothe d rums S. The preferred form of construction of these drums has beenfully described in my application entitled Pumping-rigging foroil-wells, filed November 2.7, 1896, and serially numbered 613,578, andwill therefore not be further described herein.

It will b e obvious that various modifications might be made in theherein-described apparatus whichcould be used without departing from thespirit of my invention.

I claim, and desire to secure by Letters Patent of the United States,is4

In a pumping-rigging, the combination with a bed-plate, of a flangedpedestal rigidly secured thereto, a vertical axle rigidly mounted insaid pedestal, a crown-wheel revolubly mounted on said axle above saidpedestal provided with a hub having horizontal eXtensions at its upperand lower ends,` bearing rings and balls interposed between saidpedestal and said hub, superimposed eccentrics Having thus described myinvention, what y rigidly secured directly to each other and to allyconnected to said perforated rings, subthe hub of the crown-Wheel, saideccontrics stantially as described. 1o being so arranged with relationto the axle In testimony whereof I aflix my signature as to equalize thestrain upon the latter and in presence of two Witnesses.

5 being also provided with horizontal {ianges JOHN N. MAIIER.

projecting beyond their faces, perforated lVitnesses: rings resting onsaid flanges and engaging XVILLIAM B. GRIFFEN,

said eccentrics, and connectingerods pivot- CYRUS S. MARK.

